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Question 31207
JEE Physics · Medium

Sound Waves: Speed of Sound MCQ

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Speed of SoundMediumQuestion 31207

Question

Speed of sound in air doubles when temperature (Kelvin) is:
  1. A
    Doubled
  2. B
    Quadrupled
    Correct
  3. C
    Halved
  4. D
    Increased by 273 K

Correct answer

Quadrupled

Explanation

v ∝ √T. To double v, need 4T. E.g., from 300 K to 1200 K doubles speed of sound.

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